As of the census of 2000, there were 145 people, 60 households, and 40 families residing in the city. The population density was 1,027.1 people per square mile (399.9/km²). There were 67 housing units at an average density of 474.6/sq mi (184.8/km²). The racial makeup of the city was 98.62% White, 0.69% Native American, and 0.69% from two or more races.
There were 60 households out of which 36.7% had children under the age of 18 living with them, 55.0% were married couples living together, 6.7% had a female householder with no husband present, and 31.7% were non-families. 31.7% of all households were made up of individuals and 18.3% had someone living alone who was 65 years of age or older. The average household size was 2.42 and the average family size was 3.00.
In the city the population was spread out with 30.3% under the age of 18, 6.9% from 18 to 24, 25.5% from 25 to 44, 21.4% from 45 to 64, and 15.9% who were 65 years of age or older. The median age was 35 years. For every 100 females there were 93.3 males. For every 100 females age 18 and over, there were 102.0 males.
The median income for a household in the city was $26,250, and the median income for a family was $35,625. Males had a median income of $25,750 versus $22,917 for females. The per capita income for the city was $13,513. There were 2.9% of families and 9.9% of the population living below the poverty line, including 20.0% of under eighteens and 11.8% of those over 64.
Northbound U.S. Route 95 was formerly routed westward through town as Main Street, first passing underneath the railroad tracks. Exiting town, old US-95 then resumed northward, following a descending tributary into Lawyers Creek Canyon. Two miles (3 km) north of Ferdinand, the old highway passed underneath an impressive timber railroad trestle (photos) of the Camas Prairie Railroad, then descended into the canyon to cross the creek into Lewis County. Before climbing a tributary up to Craigmont, the highway briefly paralleled a massive steel railroad trestle near its base, its track nearly 300 (91 m) feet above the creek. The highway was re-routed in the 1990s; the straighter US-95 now bypasses Ferdinand on its east side and stays east of the railroad and above the canyon, crossing it on a new elevated bridge (photo), directly above the old one.